logout

THE RISK

Low Risk

Why logout needs a policy

Logging out invalidates an authentication token and ends a session. This is neither a data read, write, destructive data operation, execution of code, nor a financial action. It is an authentication/session management operation with minimal blast radius — at worst it disrupts the current session, which is reversible by re-authenticating.

From the tool's definition Invalidate the current token and end the session

Documented attack patterns abuse exactly the kind of access logout gives an agent:

POLICY

How to control logout

PolicyLayer is an MCP gateway — it sits between your AI agents and PI API MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for logout:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "logout": {
      "limits": [
        {
          "counter": "logout_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

logout gets a rate cap, and everything else on the server is denied unless you say otherwise.

Create a free account and register PI API MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

SET A RULE FOR THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More PI API MCP Server tools

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All 18 PI API MCP Server tools →

Other tools on other servers

Android Forensics ADB MCP Server generate_app_analysis_report Ethereum Tools add Math MCP Server complex_analysis_suite Crypto_MCP aes_encrypt

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about logout

What does the logout tool do? +

Invalidate the current token and end the session. It is categorised as a Other tool in the PI API MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on logout? +

Register the PI API MCP Server MCP server in PolicyLayer and add a rule for logout: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches PI API MCP Server. Nothing to install.

What risk level is logout? +

logout is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit logout? +

Yes. Add a rate_limit block to the logout rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block logout completely? +

Set action: deny in the PolicyLayer policy for logout. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides logout? +

logout is provided by the PI API MCP Server MCP server (mingzilla/pi-api-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every PI API MCP Server tool call.

Start from PI API MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →